I've also been getting the itch for an all out sportbike. I've been riding an SV1000S, which most guys go and put a GSX-R front end on anyway... figure I might as just get the whole bike, rather than just go for the upgraded USD's, better brakes, etc. I'm wondering what a K6 750 would feel like compared with the SV. I've loved the new CBR1000RR since it came out, too, but it's been out of my price range. Anyways, I second the guys saying "go for it." A liter sportbike is never a rational decision. Just do it, ha. First time around couldn't have been too much of a "mistake" if you want to do it again, anyway.